Ronald became at some point a Board Member at Delos. He also knew William on a first name basis, even calling him "Bill".
Ronald is a member of the Delos Incorporated board who was present in the park during the Gala Massacre. After the massacre, he finds the Man in Black and asks him what is going on and where QA is. Ronald is then shot in the head by one of the Hosts.
Ronald knew the Man in Black on a personal level, calling him "Bill", just before he was shot.